A place like the Right Livers' Rest was bound to draw freaks, same as molasses draws flies. 1935, George Goodchild, chapter 5, in Death on the Centre Court: By one o'clock the place was choc-a-bloc.
Respiratory infections as well as infections of certain glands can be a cause of excessive saliva, according to the National Library of Medicine. Children with a cold, influenza or nasal allergies may have excessive saliva and drool.
Certain types of medications as well as hormones can cause the body to produce excessive saliva. Medications that are used for treating schizophrenia, such as clozapine, as well as some asthma medicines, including isoproterenol, can cause excessive saliva.